Many media sources are reporting that a border wall won't stop drugs from coming into the country, is that true?

Name: Many media sources are reporting that a border wall won't stop drugs from coming into the country, is that true?
Uploaded: 2019-01-13T13:44:12Z
Duration: 3 min 47 s
Description: John Walters, former drug czar under President George W. Bush, weighs in on whether a border wall would be effective in stopping drug trafficking.